The scircle1 equation from the mapping toolbox has inputs in the form of latitude, longitude and R, which is defined as the arc length of the small circle. I don't understand if this is a spherical angle and where physically on the sphere cap it is defined. What I have is a sphere of radius R, and coordinates of the centers where I want to have small circles. Scircle 1 returns the latitude and longitude coordinates of the concentric circle on the sphere with the centerpoint defined. This is all well and proper but I don't know the R value.
Any help is appreciated thanks.